objtool: Make struct check_options static

It is not used outside of builtin-check.c.

Also remove the unused declaration from builtin.h .
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20221216-objtool-memory-v2-2-17968f85a464@weissschuh.netSigned-off-by: Josh Poimboeuf <jpoimboe@kernel.org>

tools/objtool/builtin-check.c

@@ -65,7 +65,7 @@ static int parse_hacks(const struct option *opt, const char *str, int unset)
 	return found ? 0 : -1;
 }
 
-const struct option check_options[] = {
+static const struct option check_options[] = {
 	OPT_GROUP("Actions:"),
 	OPT_CALLBACK_OPTARG('h', "hacks", NULL, NULL, "jump_label,noinstr,skylake", "patch toolchain bugs/limitations", parse_hacks),
 	OPT_BOOLEAN('i', "ibt", &opts.ibt, "validate and annotate IBT"),

tools/objtool/include/objtool/builtin.h

@@ -7,8 +7,6 @@
 
 #include <subcmd/parse-options.h>
 
-extern const struct option check_options[];
-
 struct opts {
 	/* actions: */
 	bool dump_orc;